question_answer

One end of a light spring of natural length d and spring constant K is fixed on a rigid wall and the other is fixed to a smooth ring of mass m which can slide without friction in a vertical rod fixed at a distance d from the wall. Initially the spring makes an angles of \[37{}^\circ \]with the horizontal as shown in figure. When the system is released from rest, find the speed (in m/s) of the ring when the spring becomes horizontal. [\[\sin 37{}^\circ =3/5,\frac{g}{d}=2\]unit and \[\frac{k}{m}=16\]unit]

Answer:

10.00